SURFACE DEFLUORINATION OF PTFE BY SODIUM ATOMS

被引:55
作者
TASKER, S [1 ]
CHAMBERS, RD [1 ]
BADYAL, JPS [1 ]
机构
[1] UNIV DURHAM,DEPT CHEM,SCI LABS,DURHAM DH1 3LE,ENGLAND
关键词
D O I
10.1021/j100098a046
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Reaction of sodium atoms with poly(tetrafluoroethylene) (PTFE) under ultrahigh vacuum conditions has been followed by X-ray photoelectron spectroscopy (XPS). Surface defluorination and formation of NaF are found to occur. Initial stages of reaction result in desorption of NaF molecules; this is followed by permeation of Na adatoms into the polymer subsurface region to yield trapped NaF moieties.
引用
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页码:12442 / 12446
页数:5
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